Bearing Number Significance

Brian Engelen

2008-09-19

McMaster Carr

http://www.mcmaster.com/

5972K289

Steel Ball Bearing Double Sealed Bearing No. 6903 for 17mm Shaft Dia

In stock at $8.26 Each

_____

From: obra-bounces@list.obra.org [mailto:obra-bounces@list.obra.org] On
Behalf Of Don Whitehead
Sent: Friday, September 19, 2008 2:57 PM
To: Jason Crago
Cc: obra@list.obra.org
Subject: Re: [OBRA Chat] Bearing Number Significance

this is a pretty good intro into the significance of bearing part numbers

http://www.endurobearings.com/products/enduro_bearings.html

On Fri, Sep 19, 2008 at 2:54 PM, Jason Crago wrote:

Anyone have any idea of the significance of the numbers stamped on a
bearing.
I pulled a seized bearing from a Syncros hub that is stamped 61903RS.
When I search the web I find a company that lists a 6903-2RS as the same
bearing and on the site it states the markings of 6903/61903RS. The
dimensions are the same but I am worried that the numbers might signify
load, stability, or durability and don't want to buy an inferior bearing.
Thanks in advance
Jason
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Don Whitehead

2008-09-19

this is a pretty good intro into the significance of bearing part numbers

http://www.endurobearings.com/products/enduro_bearings.html

On Fri, Sep 19, 2008 at 2:54 PM, Jason Crago wrote:

> Anyone have any idea of the significance of the numbers stamped on a
> bearing.
> I pulled a seized bearing from a Syncros hub that is stamped 61903RS.
> When I search the web I find a company that lists a 6903-2RS as the same
> bearing and on the site it states the markings of 6903/61903RS. The
> dimensions are the same but I am worried that the numbers might signify
> load, stability, or durability and don't want to buy an inferior bearing.
> Thanks in advance
> Jason
> _______________________________________________
> OBRA mailing list
> obra@list.obra.org
> http://list.obra.org/mailman/listinfo/obra
> Unsubscribe: obra-unsubscribe@list.obra.org
>


Jason Crago

2008-09-19

Anyone have any idea of the significance of the numbers stamped on a
bearing.
I pulled a seized bearing from a Syncros hub that is stamped 61903RS.
When I search the web I find a company that lists a 6903-2RS as the same
bearing and on the site it states the markings of 6903/61903RS. The
dimensions are the same but I am worried that the numbers might signify
load, stability, or durability and don't want to buy an inferior bearing.
Thanks in advance
Jason